[CURITIBA] Scientists are closing in on how Brazilian loggers use fraud and falsified data to illegally harvest trees from the Amazon rainforest, according to new research that suggests the country’s logging control system is in need of reform.

Illegal logging is often associated with corruption, but extracting timber can also go undetected by authorities because of a lack of resources or the necessary technology to identify tree species, according to the study published in Science Advances this month (August 15).

The practice is a form of poor forest management that costs the government in lost revenue but also harms the environment, destroys habitats and threatens biodiversity.

Native trees in the Amazon rainforest. Courtesy of Marizilda Cruppe for SciDev.Net

Brazil requires loggers to inform relevant authorities of the exact amount of timber available for commercial exploitation in the areas where they plan to operate. But when researchers compared 427 valid logging permits issued in the state of Pará — in the eastern Amazon — from 2012 to 2017 against the national forest inventory, an official database that estimates the amount of wood available in selected plots, they discovered that over 70 per cent of the documentation failed to match.

Environmental authorities supervising wood exploration areas in the State of Pará. Courtesy of Marizilda Cruppe for SciDev.Net

“We’ve found major discrepancies between timber volumes registered in the forest management plans produced by loggers and the data observed in the official inventory”, agronomist Pedro Brancalion, from the University of São Paulo and leading author of the study, told SciDev.Net .

Additional data from the Institute of Man and Environment of Amazonia (Imazon) shows that 44 per cent of all tropical timber harvested in the state of Pará, between 2015 and 2016, were illegal. Instead of areas licensed for logging, they may come from environmentally protected regions such as conservation areas or indigenous reserves.

“It seems to be no coincidence that the species whose volumes were commonly overestimated by loggers are exactly the ones of higher commercial value”.

Pedro Brancalion, University of São Paulo

Brancalion explains that loggers work around the system by overstating the amount of timber they plan to extract. “By doing so, they can get extra timber from non-licensed areas and have authorities believe they were sourced from approved plots,” he says. “Local environmental authorities do not have enough human resources or technology to check whether those estimates are truthful.”

Wood from a felling area in Brazilian Amazon. Courtesy of Marizilda Cruppe for SciDev.Net

Field research confirmed that paperwork provided by loggers was false — which included deliberate misidentification of trees. “It seems to be no coincidence that the species whose volumes were commonly overestimated by loggers are exactly the ones of higher commercial value”, adds Brancalion.

A notable example is ipê (Tabebuia spp.), a type of wood largely used for construction in many countries. “The extra ipê volume garnered through ‘misidentification’ can easily be used to mask illegal ipês”, the authors wrote in their paper.

In March this year, Greenpeace published a report suggesting that such fraud, which is known locally as ‘heating up the wood’, is much more common than previously thought. Another report published in 2012 by Interpol and the UN Environment Programme estimated that 15 to 30 per cent of the wood traded globally had been obtained illegally — with the estimate rising to 50-90 per cent in tropical countries: the Amazon basin together with Central Africa and Southeast Asia are the regions where most cases of illegal logging occur.

Biologist Joice Ferreira, who works in the Amazon for the Brazilian Agricultural Research Corporation (Embrapa), welcomes the results of the study. “It is the first time a research effort scrutinises the extent to which illegal logging can further threaten the fragile environmental governance in the region”.

Although Brazil had made significant progress in reducing deforestation over the past several years, recent assessments suggest this trend has reversed. According to Imazon’s data, this summer deforestation in the Amazon region reached its highest point in a decade: 1,169 square kilometres was deforested in June of this year, an area equivalent to almost 200,000 soccer fields.

An official worker check if the information of a management plan, about correct identification of ipés, matches with data collected in the field. Courtesy of Marizilda Cruppe for SciDev.Net

Forest degradation — to which illegal logging contributes — is also increasing. Unlike deforestation, the irresponsible extraction of timber still keeps most of the forest standing, but limits its ecological functions, according to Ferreira.

“The illegal procedures mentioned in the study are common across different regions of the Amazon forest”, says forest engineer André Vianna, from Institute for Conservation and Sustainable Development of Amazonia. He believes that the best way to tackle the problem is to embrace technology and good governance practices.

Deforestation and illegal logging, two components of the same problem for the Amazon.
Courtesy of Marizilda Cruppe for SciDev.Net

Brancalion agrees: “Smarter licensing processes is what we need”, he says. “A simple piece of software, based on data from national forest inventories, could easily check whether the information provided by loggers is accurate or suspicious.”

Newly cut tree in a logging unit. Courtesy of Marizilda Cruppe for SciDev.Net

Currently, all documentation provided by loggers and assessed by the environmental bodies of Pará are paper-based — and so without precision, consistency or standardised terminology.

The environmental inspection is still done on paper like here, in a logging area in the state of Pará. Courtesy of Marizilda Cruppe for SciDev.Net

The country’s weak environmental law-enforcement systems are also part of the problem, according to the researchers.